how to get complete url and base url in MVC?

You can get the base Url(https://qawithexperts.com) in C# using the code below

//Get request from Current HttpContext
var request = HttpContext.Current.Request;

//request.Url.Scheme gives output as https/http 
//while request.Url.Authority give us Domain name
var baseUrl= request.Url.Scheme+"://"+ request.Url.Authority;

Continuing the above code, you can get absolute URL(or you can say after base URL, ie. like /questions/111/invalid-uri-the-format-of-the-uri-could-not-be-determined-er ) using the code below

request.Path; //gives you absolute URL

//or

request.Url.AbsolutePath; // also does the same thing to provide you '/questions/112/how-to-get-complete-url-and-base-url-in-mvc'

Using the above C# asp.net code you can save these URL (absolute & web-base url) in database or do something else with them.

You can create a function like this in C# to get Complete URL, base URL and absolute URL

public string GetBaseUrl()
{
    var request = HttpContext.Current.Request;
    var appUrl = HttpRuntime.AppDomainAppVirtualPath;

    if (appUrl != "/") 
        appUrl = "/" + appUrl;

    var baseUrl = string.Format("{0}://{1}{2}",
 request.Url.Scheme, //request.Url.Scheme gives https or http
request.Url.Authority, //request.Url.Authority gives qawithexperts/com
 appUrl); //appUrl = /questions/111/ok-this-is-url

    return baseUrl; //this will return complete url
}

I found this small code snippet a few months back & it works for me

Request.Url.GetLeftPart(UriPartial.Authority) + Url.Content("~")

For example, if the path is: https://domain.com/subfolder/controller/action
Then it will return : http://domain.com/subfolder/

For after base path you can use

Request.Url.AbsolutePath //returns /subfolder/controller/action

OR you can use

Request.RawUrl //returns /subfolder/controller/action

Above solutions works well for .NET MVC, but if you are working on .NET Core, you need to use below code

@string.Format("{0}://{1}{2}{3}", Context.Request.Scheme, Context.Request.Host, Context.Request.Path, Context.Request.QueryString)

OR

If you want to get URL in Razor View of .NET Core Application, then

@using Microsoft.AspNetCore.Http.Extensions


<a href="@Context.Request.GetEncodedUrl()">Link to myself</a>

Or from .NET Core 2.0 of above, you can also use GetEncodedPathAndQuery which returns "The path and query off of request".